I downloaded the
NCH test tone generatoryesterday and, using my trusty SPL meter, took frequency outputreadings from the AE520 floorstanders. I got a bit of a shockto find just how up and down the readings were - far from 'ruler flat'!
Obviously thelistening room's acoustics alsohas a big influence on the resultingfiguresso it'simpossible really to say how much is purely down to the speakers themselves.
I simplyused the generator's '+' and '-' buttons to go up and down the frequency range- starting at 20 Hz and going up to around 20kHz (about 120 different frequencies in all). You can use the plus and minus buttons on your keyboard,as you'll have a pen in your hand as well to note down the SPL readings at each frequency.
I'd recommend having a gofor anyone withansparecouple of hours to waste. And I dare anyone to post their findings on the forum!